/**
 * Copyright (c) 2016-2019 人人开源 All rights reserved.
 *
 * https://www.renren.io
 *
 * 版权所有，侵权必究！
 */

package org.nobody.common.utils;

import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.TypeReference;
import org.apache.http.HttpStatus;

import java.util.HashMap;
import java.util.Map;

/**
 * 返回数据
 *
 * @author Mark sunlightcs@gmail.com
 */
public class R extends HashMap<String, Object> {
	private static final long serialVersionUID = 1L;

	//通过feign传递的数据 因为接受方并不知晓你发送过来的数据的类型 故这里设置了泛型来标注
	public <T> T getData(TypeReference<T> typeReference){
    Object data = get("data"); //默认获取到的数据data是map类型
    String s = JSON.toJSONString(data); //想要获取到指定类型的数据,就要先转成普通字符串再用正确的类型逆转回来
    T t = JSON.parseObject(s, typeReference);
    return t;
  }

  public <T> T getData(String key,TypeReference<T> typeReference){
    Object data = get(key); //默认获取到的数据data是map类型
    String s = JSON.toJSONString(data); //想要获取到指定类型的数据,就要先转成普通字符串再用正确的类型逆转回来
    T t = JSON.parseObject(s, typeReference);
    return t;
  }

  public R setData(Object data){
    this.put("data", data);
    return this;
  }

	public R() {
		put("code", 0);
		put("msg", "success");
	}

	public static R error() {
		return error(HttpStatus.SC_INTERNAL_SERVER_ERROR, "未知异常，请联系管理员");
	}

	public static R error(String msg) {
		return error(HttpStatus.SC_INTERNAL_SERVER_ERROR, msg);
	}

	public static R error(int code, String msg) {
		R r = new R();
		r.put("code", code);
		r.put("msg", msg);
		return r;
	}

	public static R ok(String msg) {
		R r = new R();
		r.put("msg", msg);
		return r;
	}

	public static R ok(Map<String, Object> map) {
		R r = new R();
		r.putAll(map);
		return r;
	}

	public static R ok() {
		return new R();
	}

	public R put(String key, Object value) {
		super.put(key, value);
		return this;
	}

	public Integer getCode(){
    return (Integer) this.get("code");
  }
}
